Welder gave out on me.

ssba, have you checked both legs of the outlet or at the breaker box?

Yes got it plugged into a receptical that is normally operating my compressor without
problems. 50 amp breaker. Machine powers up when power switch is turned on. Fan
sounds like its gonna leave the ground having the covers off.
Tested voltage at transformer after power switch and have 119.5V to 120.3V on all
4 terminals. So voltage is getting to the transformer. Also the 115V receptical on the back
panel to plug in the cooler is live when machine is turned on.
The machine was built in the 70s or 80s and doesn't look to have any signs of repairs.